Originally Posted by mtg90
I thought the JBL sounded slightly cleaner in the midrange but that could have been my ears tricking me, they did sound unbelievably close. When I measured them the JBL had slightly lower distortion, but the B&C measured a little better as you went off axis. For me the extra extension of the B&C design stood out the most while listening and I tend to like more bass when I can get it.
The extra headroom in the bass and midbass would be one advantage. Someone could use a 50hz crossover between the 15" mains and uber subs and not worry about running into their limits as you might with a 12" which would need to be crossed higher. The other would be that directivity control with a 15" would extend a little lower then that of a 12". How noticeable that would be I am not sure.
I think for most people a 12" is plenty though there sure are a lot of people that don't fall into the most people category on this forum.
Thanks for all the input MTG90, much appreciated here. I'm very interested in the JBL 2226H, the B&C driver, the TD12M, and the TD15M.
Here are my thoughts so far: The JBL's even used are slightly more expensive than a NEW B&C driver in the kit from you guys. They do have a bit larger voicecoil (4" vs.3") but I'm not sure that's really going to matter in my application. For what it's worth I like the looks of the B&C driver better. The AE drivers seem a bit hard to get a hold of and they are of course about 1/3 more expensive than the B&C or used JBL drivers.
Let me try some modeling of my own - all in a 2.5 cu foot sealed enclosure - first max SPL capability. TD12M vs. TD15M vs. B&C 15PS76. This info may change if we look at ported but this is apples to apples. EDIT - I will being modeling in ported as well and see how that looks since I will likely go that route to lower extension a bit beyond my planned crossover point.
And with 450 watts applied to each:
It doesn't seem like there is a drastic (audible) difference in output to me between these drivers. Of course I'm only looking at SPL assuming that most of these drivers will primarily "sound" the same to me under max SPL capability. I will be using either the SEOS12/DNA360 or SEOS15/DNA360 with whatever I wind up choosing.
If I'm missing something obvious (likely as I'm new at this) please point it out!
TIA.Edited by Gorilla83 - 12/29/12 at 6:57am